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Finding the Fourth Proportional to 57,411.52, 86,070.81 and 17,948.32

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Solution

The fourth proportional to 57,411.52, 86,070.81 and 17,948.32 is: 26,907.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,411.52 : 86,070.81 = 17,948.32 : x
  2. Step 2: Convert to fraction form
    57,411.52/86,070.81 = 17,948.32/x
  3. Step 3: Cross multiply
    57,411.52x = 86,070.81 × 17,948.32
  4. Step 4: Simplify right side
    57,411.52x = 1,544,826,440.54
  5. Step 5: Solve for x
    x = 1,544,826,440.54/57,411.52
  6. Step 6: Final answer
    x = 26,907.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.